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首页> 外文期刊>Journal of Applied Electrochemistry >Electrochemical ferrate generation for waste water treatment using cast irons with high silicon contents
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Electrochemical ferrate generation for waste water treatment using cast irons with high silicon contents

机译：高硅含量铸铁用于废水处理的电化学高铁酸盐生成

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This paper deals with the electrochemical preparation of ferrate in 15 M NaOH media, with a view to treatment of waste waters. Grey cast irons with high silicon contents were shown to allow current yields in the range 20-40% depending on the applied current density, up to 34 mA cm(-2). Ferrate solutions with contents up to 0.08 M could be produced in a divided cell of simple design, and provided with flat or packed-bed electrodes. Deactivation of the anode surface was shown to be of moderate significance for hour-long runs. The ferrate produced was tested for treatment of industrial liquid wastes: coagulation efficiency of the suspended matter was comparable with that of an electrocoagulation process with sacrificial Al anodes. The potential of waste water treatment by addition of ferrate is discussed. [References: 19]
机译：本文旨在在15 M NaOH介质中电化学制备高铁酸盐，以期处理废水。显示出具有高硅含量的灰口铸铁，根据所施加的电流密度，其电流产率在20-40％的范围内，最高可达34 mA cm（-2）。含量高达0.08 M的高铁酸盐溶液可以在设计简单的分隔式电解槽中生产，并配有平坦或填充床电极。阳极表面的失活被证明对于长达一小时的运行具有中等重要性。测试了所产生的高铁酸盐对工业废液的处理：悬浮物的凝结效率与采用牺牲性Al阳极的电凝工艺相当。讨论了通过添加高铁酸盐处理废水的潜力。 [参考：19]

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